牛磺酸含量丰富的是()。 ["贝类的肉质","鱼类的肉质","家禽的肉质","淡水产品","鸡蛋"]
下列一组公差带代号,()可与基准孔Φ42H7形成间隙配合。 ["A.Φ42g6","B.Φ42n6","C.Φ42m6","D.Φ42s6"]
女,55岁,汽车撞伤左小腿,有片状皮肤擦伤出血,局部肿痛畸形,反常活动,现场紧急处理哪项最重要() ["创口消毒","创口包扎","创口缝合","夹板固定","迅速运送医院"]
鲜牛奶的蛋白质平均含量一般为()。 ["1%","2%","3%","4%","5%"]
骨折的急救不包括() ["一般处理","创口包扎","妥善固定","迅速运输","开放骨折复位"]
TPDS设备故障停机须在规定时间内恢复,恢复时间为昼间不超过(),夜间不超过(),超过规定时间须报铁路局车辆处备案。